Common type of rail car has dangerous design flaw

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FILE - This July 11, 2012 aerial file photo, a freight train is seen after an early morning derailment in Columbus, Ohio. Part of the freight train carrying ethanol derailed and caught fire, shooting flames skyward into the darkness and prompting the evacuation of a mile-wide area as firefighters and hazardous materials crews monitored the blaze. For two decades, one of the nation’s most common types of rail tanker, known as a DOT-111, a workhorse of the American rail fleet, has been allowed to haul hazardous liquids from coast to coast even though transportation officials were aware of a dangerous design flaw that almost guarantees the car will tear open in an accident. The rail and chemical industries have committed to a safer design for new tankers, but they do not want to modify tens of thousands of existing cars. That’s despite a spike in the number of accidents. (AP Photo/The Columbus Dispatch, Eamon Queeney) MANDATORY CREDIT